Would you agree that Francis Tumblety was Jack the Ripper?

I thought it was the butler.

?

Ah the intellects are out in force.

I tried to read the book by Patricia Cornwell about Jack the Ripper but got bogged down. I do find it an interesting idea though.

It’s been proven with as much certainty as possible given the age of the evidence-mostly by handwriting analysis, and careful research into the travel of tumblty, his letters, his location at the time